I've been looking at HiWave (formerly NXT) in Cambridge (UK) to let me use their HIHX14C exciters for tablet touch panels, in order to let give my users the eff

I've been looking at HiWave (formerly NXT) in Cambridge (UK) to let me use their HIHX14C exciters for tablet touch panels, in order to let give my users the effect of depressing mechanical keys when touching the panel surface. I hope to combine this with the fact that these exciters can be used essentially as drivers to conduct sound through the panel, so I can turn the whole tablet into a speaker. You can see the parts here: http://bit.ly/nc16KY http://bit.ly/nc16KY Not that I expect my target audience (people fighting attention deficit in dementia or in childhood) to type for hours every day, but I wonder if this might be a way to improve the experience and accuracy of typing on the whole: haptic/sonic feedback...